Rotary meter.



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' G g EAJEN. 4ROTARYr METER. A PPLIUATION FILED JULY 19, 19Q,2.

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NITED STATES:

PATENT Ormes.

GUsrAv FAJEN, ou MILWAUKEE, WISCONSIN.

ROTARY METR.

SPECIFICATION forming part of Letters Patent No. 726,270, dated .April 28, 1903.

Application filed July 19, 1902.

T0 a/ZZ whom it may concern:

Be it known that I, ,GUsTAv FAJEN, a citizen of the United States, andaresident of Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements in RotaryMeters; and I do hereby declare that the following is a full, clear, andexact description thereof.

vThe improvements consist in certain peculiarities of construction andcombination of parts hereinafter particularly set forthwith reference tothe accompanyingdrawings and subsequently claimed,l the object of theinvention being to provide simple, economical, and accuratefluid-meters.

Figure 1 of the drawings represents a plan view of the uncovered lowerportion ot' Yan improved rotary fluid-meter in accordance with myinvention, partly broken and in section; and Figs. 2 and 3, sectionalviews of said meter respectively indicated by lines 2 2 and 3 3 in thefirst figure.

Referring by letter to the drawings, A indicates the lower section of apot-like cylindrical casing, and in practice the upper casing-section(shown by dotted linesin Fig. 2) is held in Huid-tight connection with acontin nous outer-rim liange of said lower section, the same as in myPatent No. 661,120, issued November 6, 1900. The lower casingsectionaforesaid is provided with an inletnozzle b and an outlet-nozzle c,Vboth of whichv are made to have connection with pipe through which uidis conveyed.

Made fast to the bottom of casing-section A by screws d orotherpsuit'ablev means are legs e of a segmental chamber B, that isopen:

at the ends and hereinshown arranged eccentric to said casing.l The topofthe chamber is removable, and a depending-hollow branch f of saidchamber is provided with a seat in which the conical inner end ofinlet-nozzle b has match fit. Ay transverse slot in the bottom of thechambercommunicates with the depending hollow branch f, and back of theslot the opposite chamber-walls are provided with verticalguide-recessesintercepted by a transverse guide-'groove in the chamber-bottom.Engaging the guide-recesses and groove serial N0.116,227. (naman.)

is a sliding gate C, that dams the adjacent end of the chamber. Y

A vertical recess in gate C is engaged by a continuous wave-band D, seton edge and arranged partly within chamber B, the same constituting aloose cam'of the variety having equal diameter in every directionmeasured across its center, wherebyit has constant sliding contact withthe walls of said chamber.

Inner parallel arms E F of chamber B serve as bearings'for a spindle G,constituting part of an ordinary multiplying register mechanism, (notshown,) which in practice is supported outside of casing A, generallywithin a vertical annular flange of the upper casingsection, such'aiiange being included in the dotted line shown in Fig. 2. Cam D operatesas a wiper against a friction-wheelH, fast on spindle G, this spindleand said wheel therewith being eccentric to said chamber and cam.

Chamber-arm F is shown provided with a branch I, on which cam D issupported.

The contour of cam D is such that'there is constant pressure thereonwhen liuid is iowing through chamber B, the pressure being on the innerside, outer side, or both, of said cam, according to itsconstantly-changing position longitudinally of the transverse inlet'-vslot in the bottom of said chamber, and there is automatic reciprocationof gate C incidentalto rotary movement of the aforesaid cam. The cambeing in rotation, its depressions come into contact withyfriction-wheel -H to cause intermittent rotary movement of same and theregister-spindle G, on which it is made fast. *Howeverg other' means maybe employed for operating the register mechanism coincident withrotation of said cam by duid-pressure.

Having thusdescribed my invention, whatY I claim as new, and desire tosecure by Letters Patent, is-

1. A rotary meter comprising a casing hav-.

ing a fluid-outlet, a segmental chamber in the casing open at the endsand in communication with a fluid-inlet, a sliding gate damming-thechamber back of said inlet, a continuous waveband constituting a cam onedge partly within sliding contact with opposing chamber-walls,

a loose registermechanism spindle, and a 15 friction-wheel fast on thespindle in position to be actuated at intervals by the cam.

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in the county of Milwaukee and State of Wiszo consin, in thepresence of two witnesses.

GUSTAV FAJEN.

Witnesses:

N. E. OLIPHANT, B. C. ROLOFF.

